Geology and Geophysics
2024 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE GG-1 2024 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 43–45 of 65. Imported answers require review unless explicitly marked reviewed.
Question 43
Open questionGGNAT1 markNeeds review
The support pressure of 20 kPa is required to stabilize the lose blocks of the Excavation Disturbed Zone (EDZ) at the crown of a circular tunnel with horizontal axis. The EDZ is to be stabilized by inserting rock bolts vertically into the roof. If the working capacity of a bolt is 160 kN, the area of the roof supported by a single bolt in m² is __________ (in integer).
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Open questionGGNAT1 markNeeds review
The areas of drainage basins A and B are 25 km² and 50 km², respectively. The total length of drainages of all orders in basin A is 20 km. If both the basins have the same drainage density, the total length of drainages of all orders in basin B in km is __________ (in integer).
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 45
Open questionGGMCQ2 marksNeeds review
Match the stratigraphic units in Group–I with the sedimentary basin in Group–II.
Group–I
P. Ramgundam Sandstone
Q. Raipur Formation
R. Bagalkot Group
S. Sonia Sandstone
Group–II
Chhattisgarh
Kaladgi
Marwar
Godavari
Your answerChoose one option.
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